/*

* @由于个人水平有限, 难免有些错误, 还请指点:

* @Author: cpu_code

* @Date: 2020-09-17 09:23:05

* @LastEditTime: 2020-09-17 09:23:43

* @FilePath: \java\aggregation\aggregation9.java

* @Gitee: [https://gitee.com/cpu_code](https://gitee.com/cpu_code)

* @Github: [https://github.com/CPU-Code](https://github.com/CPU-Code)

* @CSDN: [https://blog.csdn.net/qq_44226094](https://blog.csdn.net/qq_44226094)

* @Gitbook: [https://923992029.gitbook.io/cpucode/](https://923992029.gitbook.io/cpucode/)

*/

package aggregation;

import java.util.HashSet;

import java.util.Objects;

public class aggregation9 {

public static void main(String[] args) {

//创建集合对象 该集合中存储 Student类型对象

HashSet<Student> stuSet = new HashSet<Student>();

//存储

Student stu = new Student("cpucode", 22);

stuSet.add(stu);

stuSet.add(new Student("cpu", 11));

stuSet.add(new Student("hello", 32));

stuSet.add(stu);

for(Student stu2 : stuSet){

System.out.println(stu2);

}

}

static class Student{

private String name;

private int age;

public Student(){

}

public Student(String name, int age){

this.name = name;

this.age = age;

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public int getAge() {

return age;

}

public void setAge(int age) {

this.age = age;

}

@Override

public boolean equals(Object o){

if(this == o){

return true;

}

if(o == null || getClass() != o.getClass()){

return false;

}

Student student = (Student) o;

return age == student.age && Objects.equals(name, student.name);

}

@Override

public int hashCode(){

return Objects.hash(name, age);

}

}

}

/*

com.company.Student@b73a054f

com.company.Student@2eb724

com.company.Student@1e1c5ae2

*/